CN202914749U - Multi-stage lip seal sealing structure for shaft seal in compressor - Google Patents
Multi-stage lip seal sealing structure for shaft seal in compressor Download PDFInfo
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- CN202914749U CN202914749U CN2012205361407U CN201220536140U CN202914749U CN 202914749 U CN202914749 U CN 202914749U CN 2012205361407 U CN2012205361407 U CN 2012205361407U CN 201220536140 U CN201220536140 U CN 201220536140U CN 202914749 U CN202914749 U CN 202914749U
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- seal
- lip
- shell
- lip seal
- sealing
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Abstract
The utility model relates to a multi-stage lip seal sealing structure for a shaft seal in a compressor. The multi-stage lip seal sealing structure comprises a shell, n O-shaped rings which are arranged outside the shell and used for being connected with a static component of the shell, n lip seals which are arranged inside the shell and used for sealing a rotation shaft, and n-1 gap rings; each gap ring is arranged between every two lip seals, wherein n is a positive integer; the multi-stage lip seal sealing structure has the advantages that the multi-stage lip seal is used for sealing a high-pressure medium; and even if a certain lip seal fails, several lip seal sets still can realize a sealing function.
Description
Technical field
The utility model relates to a kind of compressor, relates in particular to the sealing configuration of shaft seal in a kind of compressor.
Background technique
Fig. 1 is a kind of typical lip seal configuration schematic diagram of the prior art, comprising: lip-type seal 1, shell 2, O RunddichtringO 3.Its principle is: with shell carrying lip-type seal and O RunddichtringO, come the sealing rotary rotating shaft with lip-type seal, with the be tightly connected quiet parts of shell of O RunddichtringO.Below the withstand voltage 1.6MPa of lip seal commonly used.So, by necessity said structure is improved, reach with the versatility lip seal and come the sealed high pressure power media.Among the figure: the right side is that high pressure side Pn, left side are low voltage side Po.
Summary of the invention
The utility model technical issues that need to address have provided a kind of multistage lip for the compressor shaft seal and have been sealed seal structure, are intended to solve the above problems.
In order to solve the problems of the technologies described above, the utility model is achieved through the following technical solutions:
The utility model comprises: a shell; Settle n to be used for the O type circle of the quiet parts of connected with outer casing and to settle n lip seal that is used for the sealing rotary rotating shaft in the inboard of shell in the outside of described shell; Also comprise: n-1 spacer ring; Described each spacer ring is placed between per two lip seal; Described n is positive integer.
Compared with prior art, the beneficial effects of the utility model are: be used for the sealed high pressure medium with multistage lip seal; Even a certain lip envelope lost efficacy, but still had several lip envelope groups to realize sealing function.
Description of drawings
Fig. 1 is a kind of typical lip seal configuration schematic diagram of the prior art.
Fig. 2 is the utility model structural representation.
Fig. 3 is the sectional view that the A-A line of Fig. 2 cuts open spacer ring.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail:
By Fig. 2, Fig. 3 as seen: the utility model comprises: a shell 10; Settle n to be used for the O type circle 11 of the quiet parts of connected with outer casing and to settle n lip seal 12 that is used for the sealing rotary rotating shaft in the inboard of shell 10 in the outside of described shell 10; Also comprise: n-1 spacer ring 13; Described each spacer ring 13 is placed between per two lip seal 12; Described n is positive integer.
Described spacer ring 13 enters oil with aperture 131 current limlitings, and macropore 132 porous are fuel-displaced.
The utility model utilizes shell carrying lip seal, O type circle, spacer ring.Form Seal cage with the spacer ring interval between per two lip seal.Owing to having pressure reduction between each spacer ring, thereby sealing with O type circle between at different levels.The lip sealing label is combined on the rotary component, seals.High pressure side Pn and low voltage side P0 are sealed gas medium, Pn〉P0.Fill with oil between the multistage lip envelope.Oil pressure is followed successively by Pn between at different levels, Pn-1, Pn-2....P1, wherein Pn〉Pn-1〉Pn-2〉... P2〉P1〉P0.The oil pressure of lips at different levels envelope is ladder spends successively and successively decreases, thereby so that between every grade of lip envelope pressure reduction be unlikely to too high and cause the lip envelope to lose efficacy.
Spacer ring enters oil with the aperture current limliting, and the macropore porous is fuel-displaced, avoids each Seal cage to pile up pressure, guarantees that oil circuit is smooth and easy.
The lip seal configuration of the utility model is progressively fallen pressurized gas from high pressure side Pn by multistage lip sealing structure and is subtracted, and between multistage lip envelope, fill the reliability that increases sealing with lubricant oil, stop to leak to low voltage side P0 thereby reach pressurized gas, thereby play seal action.
That extreme pressure lubricant plays between lip envelope is lubricated, the effect of noise reduction, cooling, sealing, increases the reliability of mechanism.
Above-described embodiment only is to give an example for convenience of description, and the interest field that the utility model is advocated should be as the criterion so that claim is described certainly, but not only limits to above-described embodiment.
Claims (2)
1. a multistage lip that is used for the compressor shaft seal is sealed seal structure, comprising: a shell; It is characterized in that: settle n to be used for the O type circle of the quiet parts of connected with outer casing and to settle n lip seal that is used for the sealing rotary rotating shaft in the inboard of shell in the outside of described shell; Also comprise: n-1 spacer ring; Described each spacer ring is placed between per two lip seal; Described n is positive integer.
2. the multistage lip for the compressor shaft seal according to claim 1 is sealed seal structure, and it is characterized in that: described spacer ring enters oil with the aperture current limliting, and the macropore porous is fuel-displaced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205361407U CN202914749U (en) | 2012-10-18 | 2012-10-18 | Multi-stage lip seal sealing structure for shaft seal in compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205361407U CN202914749U (en) | 2012-10-18 | 2012-10-18 | Multi-stage lip seal sealing structure for shaft seal in compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202914749U true CN202914749U (en) | 2013-05-01 |
Family
ID=48163066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012205361407U Expired - Lifetime CN202914749U (en) | 2012-10-18 | 2012-10-18 | Multi-stage lip seal sealing structure for shaft seal in compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202914749U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103775651A (en) * | 2012-10-18 | 2014-05-07 | 上海汉钟精机股份有限公司 | Multi-level lip seal leakproof structure for compressor shaft seal |
| CN112443559A (en) * | 2019-09-03 | 2021-03-05 | 上汽通用汽车有限公司 | Gear shifting inhaul cable via hole sealing assembly, vehicle and method |
-
2012
- 2012-10-18 CN CN2012205361407U patent/CN202914749U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103775651A (en) * | 2012-10-18 | 2014-05-07 | 上海汉钟精机股份有限公司 | Multi-level lip seal leakproof structure for compressor shaft seal |
| CN112443559A (en) * | 2019-09-03 | 2021-03-05 | 上汽通用汽车有限公司 | Gear shifting inhaul cable via hole sealing assembly, vehicle and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130501 |